MCZ Club HYDRO 15 kW - Manual (Page 29)

PELLET STOVES Chapter 5
INSTALLATION AND USE MANUAL page 29
Maintenance and cleaning Technical service - Rights reserved MCZ GROUP S.p.A. - Reproduction prohibited
5. RECOMMENDATIONS FOR A SAFE USE
ONLY A SUITABLE INSTALLATION ACCORDING TO
THE UK BUILDING REGULATIONS (ADJ) AND A
PROPER MAINTAINANCE AND CLEANING OF THE
PRODUCT CAN ASSURE YOU THE CORRECT
FUNCTIONALITY AND A SAFE USE OF YOUR STOVE.
We wish to notify you that we have been made aware of incidents
involving domestic heating pellet stoves resulting from the stoves
having been incorrectly installed or inadequately maintained. In some
cases the incident provoked an explosion that caused the glass door on
the stoves to shatter.
We would like to assure you that all of our products are very safe and
are certified to the required European standards. The ignition system
has been tested carefully to increase the lighting efficiency and avoid
any trouble even in the worst working condition. Moreover our
structures are also provided with a safety device studied to discharge
the eventual overpressure in combustion chamber, and avoid any
damage to the product and consequent risk for the final user. However,
like any stove, our stoves need to be properly installed and maintained
if they are to work safely.
Our studies suggest that these explosions are mainly caused by a
combination of some or all of the following factors:
 Clogged brazier holes or a deformed brazier, resulting from
insufficient maintenance, creating the conditions for a delayed
ignition causing a build up of unburnt gases
 Insufficient combustion air due to the stove not having a big
enough air inlet or not having an air inlet at all
 The use of smoke connections or flue pipe assembly which don’t
comply with UK regulations and which don’t create the draught
required to effectively suck the smoke outside (e.g. too many
bends in the flue).
 Partially blocked flue pipes, which indicates poor maintenance,
reducing the draw on the chimney making ignition difficult.
 The chimney terminal not complying with our installation
instructions and failing to prevent potentially dangerous down-
draught. This component becomes essential when the stove is
installed in windy areas like coastal zones.
Any of the above factors or any combination of them could generate
unburnt gasses which in the worst cases could explosively ignite when
there becomes enough oxygen present.
To avoid this rare but not impossible inconvenient, first of all the
installation shall be done in compliance with UK building regulations and
the suggestions described in this manual.
Furthermore it’s absolutely important to respect the following simple
rules:
 The brazier shall be always layed down in its proper position
before any use of the product, removing completely the dirt if
present in the base plate
 Pellets must not be fed manually into the brazier, both before
ignition and during the working condition.
 Eventual accumulated unburnt pellets in the burner after a
failed ignitions must be removed before lighting
Example of clean grate
ONLY FOR UK